ASME B16.47-2011 Large Diameter Steel Flanges NPS 26 Through NPS 60 Metric/Inch Standard

An American National Standard. The American Society of Mechanical Engineers (ASME). Revision of ASME B16.47-2006. Date of Issuance: October 20, 2011. 120 p. This Standard covers pressure–temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60. Included are flanges with rating class designations 75, 150, 300, 400, 600, and 900 with requirements given in both SI (Metric) and U.S. Customary units, with diameter of bolts and flange bolt holes expressed in inch units